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13952489 is a prime number
BaseRepresentation
bin110101001110…
…010111101001
3222020212012212
4311032113221
512032434424
61215014505
7226410545
oct65162751
928225185
1013952489
11796a791
12480a435
132b76915
141bd2a25
15135910e
hexd4e5e9

13952489 has 2 divisors, whose sum is σ = 13952490. Its totient is φ = 13952488.

The previous prime is 13952459. The next prime is 13952503. The reversal of 13952489 is 98425931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10837264 + 3115225 = 3292^2 + 1765^2 .

It is a cyclic number.

It is not a de Polignac number, because 13952489 - 212 = 13948393 is a prime.

It is not a weakly prime, because it can be changed into another prime (13952429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6976244 + 6976245.

It is an arithmetic number, because the mean of its divisors is an integer number (6976245).

Almost surely, 213952489 is an apocalyptic number.

It is an amenable number.

13952489 is a deficient number, since it is larger than the sum of its proper divisors (1).

13952489 is an equidigital number, since it uses as much as digits as its factorization.

13952489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 41.

The square root of 13952489 is about 3735.3030666868. The cubic root of 13952489 is about 240.7412786859.

It can be divided in two parts, 139524 and 89, that multiplied together give a triangular number (12417636 = T4983).

The spelling of 13952489 in words is "thirteen million, nine hundred fifty-two thousand, four hundred eighty-nine".